Next Article in Journal
Improving Water Distribution Systems Robustness through Optimal Valve Installation
Previous Article in Journal
Spatiotemporal Rainfall Trends in the Brazilian Legal Amazon between the Years 1998 and 2015
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Water 2018, 10(9), 1222; https://doi.org/10.3390/w10091222

Adsorption of Aclonifen, Alachlor, Cd and Cu onto Natural River Suspended Matter in the Context of Multi-Pollutions: Influence of Contaminant Co-Presence and Order of Input into the Aqueous Solution

1
EcoLab, Université de Toulouse, CNRS, UPS, INPT, Campus ENSAT, Avenue de l’Agrobiopole, 31326 Castanet Tolosan CEDEX, France
2
Faculty of Agricultural and Food Sciences, Holy Spirit University, Kaslik, Jounieh B.P. 446, Lebanon
3
INRA, UMR Xénobiotiques, B.P. 3, 180 Chemin de Tournefeuille, 31931 Toulouse CEDEX 9, France
4
Service de Biogéochimie et Modélisation du Système Terre, Université Libre de Bruxelles, B-1050 Brussels, Belgium
*
Author to whom correspondence should be addressed.
Received: 10 August 2018 / Revised: 5 September 2018 / Accepted: 7 September 2018 / Published: 11 September 2018
(This article belongs to the Section Water Quality and Ecosystems)
Full-Text   |   PDF [4966 KB, uploaded 11 September 2018]   |  

Abstract

In the environment, a pollutant is rarely present alone, and other contaminants can influence its fate. To investigate the influence of the presence of other pollutants on the sorption of pesticides and trace metals (TM), the adsorption of Aclonifen, alachlor, Cd and Cu onto suspended particulate matter (SPM) was studied. SPM was isolated during the flood event of May 2010 in the Save agricultural watershed of SW France. Adsorption equilibrium was reached after 2 h of contact with SPM for pesticides and 24 h for TM. To simulate natural conditions, the SPM load allowing a maximum adsorption of pollutants was set at 1 g L−1 and the concentration of pollutants at 10 μg L−1. These factors being established, the co-presence experiments showed that most contaminants were influenced by the presence of other pollutant(s) in the water, trace metals to a lesser extent than pesticides. The mutual influence can be either competition for the same adsorption sites or formation of new complexes between pollutants. These phenomena can modify the adsorption capacities of each pollutant. The order of introduction into the aqueous solution also influenced the amount of adsorption of pollutants onto SPM. These results open new perspectives on the fate of pollutants. View Full-Text
Keywords: pesticides; trace metals; suspended particulate matter; adsorption; co-presence pesticides; trace metals; suspended particulate matter; adsorption; co-presence
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

El Azzi, D.; Laurent, F.; Roussiez, V.; Chou, L.; Guiresse, M.; Probst, J.-L. Adsorption of Aclonifen, Alachlor, Cd and Cu onto Natural River Suspended Matter in the Context of Multi-Pollutions: Influence of Contaminant Co-Presence and Order of Input into the Aqueous Solution. Water 2018, 10, 1222.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top